“…The results of previous research indicate that initially, the assessment of the child him/herself and the others is not connected with external criteria (Marsh and Shavelson, 1985) and is burdened with an overestimation of the child's own abilities, which is characteristic for early childhood (Dweck, 2002). However, with the gradual inclusion of other people as a source of information about the child (Salley, Vannatta, Gerhardt and Noll, 2010), this assessment becomes, starting from about eight years of age (Cole, Jacquez and Maschman, 2001), more abstract and complex, based on a larger number of psychological descriptors (Anderman and Maehr, 1994) and -consequently -closer to reality (Wigfield et al, 1997).…”